Chris Looney says the giant Asian hornets tear up entire bee colonies by decapitating the bee's heads with their jaws and feeding the thoraxes to their young, in a report as cited by the NYT.

Beekeeper Ted McFall said he arrived to check on a group of hives near Custer, Wash., in November, and was shocked to find thousands and thousands of bee carcasses on the ground, with their heads torn from their bodies.

McFall suspects the so-called "murder hornets" were to blame.

In their native Japan, the hornets kill up to 50 people a year.

'HOT METAL INTO SKIN'

Queen hornets can grow up to two inches long, and "can use mandibles shaped like spiked shark fins to wipe out a honeybee hive in a matter of hours," the NTY report said.

The hornet’s potent venom and stinger is long enough to puncture a beekeeping suit and the sting has been likened to hot metal driving into skin.

Conrad Bérubé, a beekeeper and entomologist in the town of Nanaimo in Vancouver Island, said he was stung in the leg and through his bee suit by a killer hornet in November.

“It was like having red-hot thumbtacks being driven into my flesh,” he explained.

The hornet looks fierce with a face featuring Spider-Man like eyes, orange and black stripes that extend down its body like a tiger, and wings like a dragonfly.

It was like having red-hot thumbtacks being driven into my flesh.

Conrad Bérubé, Beekeeper

The unwelcome invaders are expected to be much more active now that Spring is here and summer approaches.

Looney, an entomologist at the Washington State Department of Agriculture, says the invasion is a "serious problem".

He has urged scientists to get rid of them, saying: “This is our window to keep it from establishing".

“If we can’t do it in the next couple of years, it probably can’t be done," he added.

Homemade hornet traps have been set up in the hopes of keeping the population at bay and to track where they think the hornets are.

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